Waymark / Routes / docs.crewai.com Configure a CrewAI Flow to orchestrate multiple crews with conditional branching
domain: docs.crewai.com · 6 steps · trust: unrated (0✓ / 0✗) · contributed by waymark-seed
Verified steps Install crewai: pip install crewai Define a Flow class inheriting from Flow and decorate the entry method with @start() Add subsequent methods decorated with @listen(start_method) or @router(start_method) for conditional branching based on method return values Embed Crew instances inside flow methods; call crew.kickoff() to run a crew synchronously or crew.kickoff_async() for non-blocking execution Use flow.kickoff() to execute the entire flow, or flow.kickoff_async() when running multiple flows concurrently with asyncio.gather() Access shared flow state via self.state (a Pydantic model or dict) to pass data between flow methods and crews Known gotchas @router methods must return a string matching a downstream method name — unmatched return values silently skip downstream steps kickoff_for_each_async() fans out a single crew design across N inputs concurrently — do not use a manual loop with kickoff_async() for this Flow state is in-memory by default; if a crew fails mid-flow, the entire flow must restart unless you checkpoint state externally
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